Stealing Pins?

gumby

Good Morning,

I am upgrading my Anycubic Predator.

I have Duet3 5+ mini wifi, smart end effector, Filament Sensor, PanelDue, Optical Endstops, Relay board, stepper motors, and obviously an extruder.

So I am running out of pins.

Here is my ask. If I have unused pins on some of the IO_1-4 headers, and a free 5V pin, is there a reason not to Frankenstein a set of wires to random pins to get a new endstop?

The issue I am having, is that I did not know IO-0 and the PanelDue connector share the same circuit, and it said not to dual use it. So I need to free up IO_0 for the PanelDue which currently has an endstop attached to it,

One last note, I tried firing my optical endstop from 3.3V, (which would have solved the problem) but it did not have enough juice. So I have to get 5v and an empty input or sacrifice the PanelDue.

(Getting Close)
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Thanks in advance for any wisdom on this topic.
Gumby

jay_s_uk

@gumby no reason why you can't pull 5v from somewhere else. The IO input pins are tolerant up to 30v

dc42

@gumby said in Stealing Pins?:

One last note, I tried firing my optical endstop from 3.3V, (which would have solved the problem) but it did not have enough juice. So I have to get 5v and an empty input or sacrifice the PanelDue.

Connectors IO0 thru IO4 provide +5V. You can use the +5V pin on those connectors to supply to power devices attached to IO5 and/or IO6 if you need to. Alternatively, if you have an input device connected to IO1, IO2, IO3 or IO4 that doesn't need +5v then you can swap that device with IO5 or IO6.

gumby

@dc42

Thanks,

I'm glad I'm not breaking any cardinal rules...

Cheers,
Gumby

gumby

@gumby

Just to finalize the topic, I wanted to post that mixing pins from available headers worked like a charm.

PanelDue working now.

Thanks again to this community.

Cheers,
Gumby